Cast-in-place threshold structure for overhead door openings in building walls, and the like



FIG. 1 is a perspective from in front and above, of a cast-in-place threshold structure for overhead door openings in building walls, and the like, embodying my new design;

FIG. 2 is a perspective view thereof, from the back and below;

FIG. 3 is a side elevation view thereof, the opposite side elevation being substantially the mirror image thereof;

FIG. 4 is a front elevation thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation thereof; and

FIG. 7 is a bottom view thereof. 

The ornamental design for a cast-in-place threshold structure for overhead door openings in building walls, and the like, as shown and described. 